晚上好，我正在处理项目代码，我遇到了以下问题：程序关闭后数据无法正常保存。数据在txt文件中保存为多个数组，但它可以保存奇怪的信息，请帮忙。注意：info.txt在这里是因为项目的第一阶段（我们处于阶段2）需要，所以除非它没有引起任何问题，请忽略它。同样适用于空函数，在我们添加帐户时添加帐户我们需要将数组移动到右侧
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define MAXSIZE 100
void displayMainMenu();
void displayAccounts();
void addAccount(int ids[],double balances[],long phones[],char types[],int size);
void closeAccount(int ids[], double balances[],long phones[],char types[], int size);
void viewAccountDetails(int ids[],double balances[],long phones[],char types[],int size);
void modifyAccountDetails();
void addAmount();
void withdrawAmount();
void uploadDataFile(int ids[],double balances[],long phones[],char types[],int size);
void updateDataFile(int ids[], double balances[],long phones[], char types[],int size);
int main() {
int choice,i=0,j=0,status;
int id[MAXSIZE];
char name1[MAXSIZE][30],name2[MAXSIZE][30];
long number[MAXSIZE];
char type[MAXSIZE];
double balance[MAXSIZE];
FILE*inp;
inp=fopen("info.text","r");
do {
status=fscanf(inp ,"%d",&id[i]);
fscanf(inp ,"%s%s" ,name1[i],name2[i]);
fscanf(inp ,"%ld" ,&number[i]);
fscanf(inp ,"%c" ,&type[i]);
fscanf(inp ,"%lf" ,&balance[i]);
i++;
} while(status!=EOF);
fclose(inp);
uploadDataFile(id, balance, number, type, i);
printf("Information Loaded successfully\n");
do {
printf("--------main menu---------\n");
printf("1- Add Account\n");
printf("2- View All Accounts \n");
printf("3- Add Amount\n");
printf("4- Withdraw Amount\n");
printf("5- View Account Details\n");
printf("6- Modify Account\n");
printf("7- Close an Account\n");
printf("8- Exit\n");
printf("please enter your choice:");
scanf("%d" , &choice);
switch(choice) {
case 1: addAccount(id,balance,number,type,i);
break;
case 2: displayAccounts(id,balance,number,type,i);
break;
case 3: addAmount();
break;
case 4: withdrawAmount();
break;
case 5: viewAccountDetails(id,balance,number,type,i);
break;
case 6: modifyAccountDetails();
break;
case 7: closeAccount(id,balance,number,type,i);
break;
case 8: displayMainMenu();
break;
default: printf("error\n");
}
} while (choice!=8);
uploadDataFile( id, balance, number, type, i);
printf("Thank you,the information has been updated successfully!\n");
return 0;
}
void displayMainMenu() {
printf("displays the main menu\n");
}
void displayAccounts(int ids[],double balances[],long phones[],
char types[],int size) {
int i;
for(i=0;i<size;i++)
printf("The id is:%d\t\t The balance is:%f\nThe phone number is:%d\t The type is:%s\n",ids[i],balances[i],phones[i],types[i]);
}
void addAccount(int ids[],double balances[],long phones[],char types[],int size) {
int i=0,temp,id,flag,j;
double temp2,balance;
long temp3,phone;
char temp4,type;
printf("Please enter the account's new id\n");
scanf("%d",&id);
if(size<MAXSIZE) {
while(i<size) {
if(id==ids[i]) {
flag=1;
break;
} else {
flag=0;
i++;
}
}
}
if(flag==0) {
for(i=size;i>0;i--) {
ids[i]=ids[i-1];
balances[i]=balances[i-1];
phones[i]=phones[i-1];
types[i]=types[i-1];
}
ids[0]=id;
for(j=0;j<size-1;j++) {
for(i=1;i<size;i++) {
temp=ids[i-1];
temp2=balances[i-1];
temp3=phones[i-1];
temp4=types[i-1];
ids[i-1]=ids[i];
balances[i-1]=balances[i];
phones[i-1]=phones[i];
types[i-1]=types[i];
ids[i]=temp;
balances[i]=temp2;
phones[i]=temp3;
types[i]=temp4;
}
}
printf("Please enter the account's balance\n");
scanf("%lf",&balance);
printf("Please enter the account's phone number\n");
scanf("%ld",&phone);
printf("Please enter the account's type \n");
scanf(" %c",&type);
balances[0]=balance;
phones[0]=phone;
types[0]=type;
printf("Account added!\n");
} else
("the Id is already in use\n");
}
void closeAccount(int ids[], double balances[],long phones[],
char types[], int size) {
int i,j;
int id;
printf("please enter the id u want to close\n");
scanf("%d",&id);
if(size>0) {
for(i=0;j<size;j++) {
for(i=0;i<size-1;i++) {
if(id==ids[i]) {
ids[i]=ids[i+1];
balances[i]=balances[i+1];
phones[i]=phones[i];
types[i]=types[i+1];
} else
printf("error\n");
break;
}
}
}
}
void viewAccountDetails(int ids[],double balances[],long phones[],char types[],int size) {
int id,i=0,flag;
printf("Please input the id for the desired account\n");
scanf("%d",&id);
if(size>0) {
while(i<size) {
if(id==ids[i]) {
flag=1;
break;
} else {
flag=0;
i++;
}
}
}
if(flag==1)
printf("The account information are:\n id: %d/t balance: %f\t phone number:%ld\t Type: %c",ids[i],balances[i],phones[i],types[i]);
else
printf("Error: The account was not found\n");
}
void modifyAccountDetails() {
printf("modifies a certain account details ");
}
void addAmount() {
printf("increases the balance variable");
}
void withdrawAmount() {
printf("decreases the balance variable");
}
void uploadDataFile(int ids[],double balances[],long phones[],char types[],int size) {
FILE*inp;
inp=fopen("Accounts.txt","r");
int i=1;
while(i<size) {
fscanf(inp ,"%d",&ids[i]);
fscanf(inp ,"%ld" ,&phones[i]);
fscanf(inp ,"%c" ,&types[i]);
fscanf(inp ,"%lf" ,&balances[i]);
i++;
}
}
void updateDataFile(int ids[], double balances[], long phones[], char types[], int size) {
FILE*out;
out=fopen("Accounts.txt","w");
fprintf(out,"%d\n",ids);
fprintf(out,"%f\n",balances);
fprintf(out,"%ld\n",phones);
fprintf(out,"%c\n",types);
}
答案 0 :(得分：1)
获取编译器警告。如果我们首先修正警告，那么我们就会更清楚。
Main您可以在http://ideone.com/中创建一个最小示例并排除文件i / o并仅使用printf并查看问题所在，如果不在上面的警告中。
警告意味着您的类型错误但代码仍然可以运行，如果混合使用不同的类型，您将从程序或类似程序中获得未定义的行为。小心什么是指针和什么数据。